Airbag control unit with part number 65 67 9 296 495

What is the function of Airbag Control Unit 65 67 9 296 495?

The Airbag Control Unit 65 67 9 296 495 is the central control unit for the Occupant Restraint System (SRS) in the BMW 3 Series F35. It analyzes data from crash sensors and, within milliseconds, decides whether to deploy airbags and seatbelt pretensioners to provide optimal protection for vehicle occupants in the event of a collision.

As the brain of the passive safety system, this control unit continuously monitors signals from acceleration and pressure sensors throughout the vehicle. In the event of a collision exceeding predefined thresholds, it sends ignition pulses to the relevant pyrotechnic components, such as front, side, or head airbags, as well as seatbelt pretensioners.

In addition, the unit communicates with other control units on the vehicle’s network and stores critical event and diagnostic data. Therefore, proper functionality is essential for vehicle safety.

What defects occur in 65 67 9 296 495?

The most common cause of failure for Control Unit 65 67 9 296 495 is the storage of crash data after an accident, resulting in a permanent system lockout. Other causes include internal electronic malfunctions, communication issues with diagnostic tools, or damaged connectors and wiring.

Even after a collision—where only seatbelt pretensioners have deployed and airbags remain intact—irreversible crash data remains stored in the control unit’s memory. This lockout serves as a manufacturer‑imposed safety measure, preventing further use until a professional reset is performed. Once locked, the unit reports a persistent fault.

Besides accident‑related locks, purely electronic problems can also arise. These include defective components on the circuit board, broken wires, incorrect wiring, or loose connectors that lead to communication interruptions or internal error messages. A preliminary diagnosis at a specialized workshop is therefore advisable to accurately identify the root cause.

This control unit is also compatible with related part numbers 65 67 9 296 494, 65 67 9 461 918/919, 6826984, or 9348727, which may exhibit similar fault patterns.

How do you recognize a defect in Control Unit 65 67 9 296 495?

A defect in Control Unit 65 67 9 296 495 almost always manifests as a permanently illuminated airbag warning light on the instrument cluster. Often, the control unit cannot be read by a diagnostic tool, or persistent error codes remain that cannot be cleared.

The primary and unmistakable symptom is the active SRS or airbag warning light, which fails to extinguish after starting the vehicle—indicating a serious, safety‑critical system fault.

Another clear sign is when a workshop’s diagnostic equipment cannot establish communication with the airbag control unit. The unit does not respond to queries, often pointing to an internal electronic malfunction.

In cases where communication is possible, the fault memory frequently contains entries such as “Crash data stored” or “Internal control unit error.” These errors cannot be cleared using standard diagnostic tools and require specialized repair.

In which vehicles is Control Unit 65 67 9 296 495 installed?

The Airbag Control Unit with part number 65 67 9 296 495 is specifically designed for BMW models. At Airbag24, this component is primarily accepted for repair on BMW 3 Series vehicles of the F35 generation, built between 2012 and 2019.

With over 20 years of experience and more than 20,000 repairs completed, Airbag24 services Control Unit 65 67 9 296 495 for the following model:

- BMW 3 Series F35 (2012–2019)

It is crucial to verify the part number stamped on the control unit housing before sending it in, ensuring compatibility and guaranteeing proper repair.

How is Control Unit 65 67 9 296 495 professionally repaired?

At Airbag24, Control Unit 65 67 9 296 495 undergoes professional electronic restoration. The process includes diagnosis, targeted deletion of stored crash data, and repair of any internal component defects. Following a final functional test, the unit is fully operational again.

After submission to Airbag24, the repair follows a proven technical procedure. First, an initial inspection is conducted, during which the fault memory is read to confirm the reported defect.

The core of the repair involves precisely resetting the stored crash data via the OBD‑II interface or directly on the memory chip. This removes the accident‑induced lockout and restores the control unit to a functional state equivalent to that of a new part.

If additional electronic faults are detected, the affected components on the circuit board are identified and replaced by qualified technicians. Finally, a comprehensive functional test is performed to ensure the control unit operates flawlessly once again. All repairs come with a 12-month warranty.

What shipping options does Airbag24 offer?

For repairing your control unit at Airbag24, flexible shipping options are available. You can either send the component yourself free of charge or arrange a convenient UPS pickup. For the return shipment, you can choose between free UPS standard shipping and the faster express service, both also available with cash-on-delivery.

For the outbound shipment, you have two options: you can pack the control unit yourself and send it to Airbag24 at no cost, or alternatively, you can request a UPS pickup from your preferred location.

After successful repair, the return shipment will be handled according to your preferences. UPS standard shipping is free for you. If you need it faster, UPS express shipping is available. Both options can also be arranged with cash-on-delivery upon request. Of course, in-person collection on-site is also possible.